Remove python 2.7ism
Remove python 2.7ism

Change-Id: I9e74d79e42cc22aa0f0883fb1e1582be2860d842
Signed-off-by: Steven Dake <8638f3fce5db0278cfbc239bd581dfc00c29ec9d@redhat.com>

pratikmallya/heat,openstack/heat,openstack/heat-cfntools,takeshineshiro/heat,gonzolino/heat,cryptickp/heat,steveb/heat,dragorosson/heat,varunarya10/heat,takeshineshiro/heat,miguelgrinberg/heat,gonzolino/heat,ntt-sic/heat,JioCloud/heat,steveb/heat,redhat-openstack/heat,dims/heat,redhat-openstack/heat,rdo-management/heat,noironetworks/heat,cryptickp/heat,noironetworks/heat,rdo-management/heat,Triv90/Heat,maestro-hybrid-cloud/heat,rickerc/heat_audit,rh-s/heat,ntt-sic/heat,dragorosson/heat,Triv90/Heat,miguelgrinberg/heat,pshchelo/heat,rh-s/heat,rickerc/heat_audit,citrix-openstack-build/heat,bbandaru/heat-cfntools,citrix-openstack-build/heat,NeCTAR-RC/heat,maestro-hybrid-cloud/heat,openstack/heat,JioCloud/heat,sdake/heat-jeos,srznew/heat,jasondunsmore/heat,varunarya10/heat,jasondunsmore/heat,srznew/heat,steveb/heat-cfntools,steveb/heat-cfntools,pratikmallya/heat,cwolferh/heat-scratch,pshchelo/heat,NeCTAR-RC/heat,dims/heat,cwolferh/heat-scratch,Triv90/Heat